diff --git a/mozilla/toolkit/components/printing/content/printPageSetup.xul b/mozilla/toolkit/components/printing/content/printPageSetup.xul
index 94197255408..81889fae367 100644
--- a/mozilla/toolkit/components/printing/content/printPageSetup.xul
+++ b/mozilla/toolkit/components/printing/content/printPageSetup.xul
@@ -48,6 +48,7 @@
 <!DOCTYPE dialog SYSTEM "chrome://global/locale/printPageSetup.dtd">
 
 <dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+  id="printPageSetupDialog"
   onload="onLoad();"
   ondialogaccept="return onAccept();"
   oncancel="return onCancel();"
diff --git a/mozilla/xpfe/global/resources/content/printPageSetup.xul b/mozilla/xpfe/global/resources/content/printPageSetup.xul
index 1b11cef1d4a..5447315ad50 100644
--- a/mozilla/xpfe/global/resources/content/printPageSetup.xul
+++ b/mozilla/xpfe/global/resources/content/printPageSetup.xul
@@ -48,6 +48,7 @@
 <!DOCTYPE dialog SYSTEM "chrome://global/locale/printPageSetup.dtd">
 
 <dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+  id="printPageSetupDialog"
   onload="onLoad();"
   ondialogaccept="return onAccept();"
   oncancel="return onCancel();"